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Reliability and validity of the Turkish Nose Obstruction Symptom Evaluation (NOSE) scale

Karahatay, Serdar; Tasli, Hamdi; Karakoç, Ömer; Aydin, Ümit; Türker, Türker.
Turk J Med Sci; 48(2): 212-216, 2018 Apr 30.
Artigo em Inglês | MEDLINE | ID: mdl-29714430

BACKGROUND/AIM:

The aim of this study was to validate the Turkish Nasal Obstruction Symptom Evaluation (T-NOSE) scale.

MATERIALS AND METHODS:

The NOSE scale was translated into Turkish. A prospective study was conducted involving adult subjects with nasal obstruction and a control group. The patients were divided into three groups, namely nasal septum deviation (NSD), septoplasty, and control groups. Internal consistency, test-retest reliability, validity, responsiveness, and the magnitude of the effect of surgery were all investigated.

RESULTS:

In total, 253 subjects were enrolled in the study. Cronbach's alpha was 0.938 and 0.942 upon test and retest, respectively, which proved good internal consistency. The mean kappa value was 0.82, indicating a high level of reproducibility. The difference between postoperative and control groups was not statistically significant (P < 0.05). The T-NOSE score of the NSD group was 65.67 ± 16.77, while it was 10.75 ± 12.25 for the control group (P < 0.01). The mean score improved following septoplasty (P < 0.001). The magnitude of the effect of surgery was considered high. The correlation between the visual analogue scale and NOSE scores was 0.948.

CONCLUSION:

The T-NOSE scale is a valid instrument with good internal consistency, reliability, reproducibility, validity, and responsiveness.